18445008740807 has 24 divisors (see below), whose sum is σ = 20375663344176. Its totient is φ = 16684368624000.

The previous prime is 18445008740783. The next prime is 18445008740849. The reversal of 18445008740807 is 70804780054481.

It is not a de Polignac number, because 18445008740807 - 2¹⁰ = 18445008739783 is a prime.

It is a super-2 number, since 2×18445008740807² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18445008740857) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99912707 + ... + 100097147.

It is an arithmetic number, because the mean of its divisors is an integer number (848985972674).

Almost surely, 2^{18445008740807} is an apocalyptic number.

18445008740807 is a deficient number, since it is larger than the sum of its proper divisors (1930654603369).

18445008740807 is a wasteful number, since it uses less digits than its factorization.

18445008740807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188591 (or 188580 counting only the distinct ones).

The product of its (nonzero) digits is 8028160, while the sum is 56.

The spelling of 18445008740807 in words is "eighteen trillion, four hundred forty-five billion, eight million, seven hundred forty thousand, eight hundred seven".